Soft Maximum for Categories per Company

I have run into what appears to be a “soft maximum” for the amount of categories a company can be listed in.

Our database has companies in sometimes as many as 300 categories. I am running into a limit around the mid-60s (65 for one company, 67 for another) for categories that will fit per company.

I do not receive any error message. It simply won’t save my changes if I try to add more than this soft maximum for the company.

Is there a way to increase how many categories a company can be listed in? It is very important our existing database translate to this GeoDirectory one, and that the data is the same when it comes to the categories that companies are in.